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All results from a given calculation for C2H6 (Ethane)

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-79.257853
Energy at 298.15K-79.263857
HF Energy-79.257853
Nuclear repulsion energy42.446833
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3157 2868 0.00 302.61 0.01 0.02
2 A1g 1548 1407 0.00 0.66 0.16 0.27
3 A1g 1050 954 0.00 15.89 0.20 0.34
4 A1u 328 298 0.00 0.00 0.00 0.00
5 A2u 3150 2862 71.91 0.00 0.00 0.00
6 A2u 1521 1382 0.46 0.00 0.00 0.00
7 Eg 3193 2901 0.00 127.53 0.75 0.86
7 Eg 3193 2901 0.00 127.53 0.75 0.86
8 Eg 1615 1467 0.00 9.46 0.75 0.86
8 Eg 1615 1467 0.00 9.46 0.75 0.86
9 Eg 1322 1201 0.00 0.18 0.75 0.86
9 Eg 1322 1201 0.00 0.18 0.75 0.86
10 Eu 3220 2926 97.17 0.00 0.00 0.00
10 Eu 3220 2926 97.17 0.00 0.00 0.00
11 Eu 1619 1471 7.95 0.00 0.00 0.00
11 Eu 1619 1471 7.95 0.00 0.00 0.00
12 Eu 880 799 2.36 0.00 0.00 0.00
12 Eu 880 799 2.36 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 17225.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 15650.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-311+G(3df,2p)
ABC
2.72886 0.67167 0.67167

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.762
C2 0.000 0.000 -0.762
H3 0.000 1.011 1.155
H4 -0.875 -0.505 1.155
H5 0.875 -0.505 1.155
H6 0.000 -1.011 -1.155
H7 -0.875 0.505 -1.155
H8 0.875 0.505 -1.155

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52471.08421.08421.08422.16712.16712.1671
C21.52472.16712.16712.16711.08421.08421.0842
H31.08422.16711.75071.75073.06902.52082.5208
H41.08422.16711.75071.75072.52082.52083.0690
H51.08422.16711.75071.75072.52083.06902.5208
H62.16711.08423.06902.52082.52081.75071.7507
H72.16711.08422.52082.52083.06901.75071.7507
H82.16711.08422.52083.06902.52081.75071.7507

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.212 C1 C2 H7 111.212
C1 C2 H8 111.212 C2 C1 H3 111.212
C2 C1 H4 111.212 C2 C1 H5 111.212
H3 C1 H4 107.675 H3 C1 H5 107.675
H4 C1 H5 107.675 H6 C2 H7 107.675
H6 C2 H8 107.675 H7 C2 H8 107.675
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.351      
2 C -0.351      
3 H 0.117      
4 H 0.117      
5 H 0.117      
6 H 0.117      
7 H 0.117      
8 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.912 0.000 0.000
y 0.000 -14.912 0.000
z 0.000 0.000 -15.587
Traceless
 xyz
x 0.337 0.000 0.000
y 0.000 0.337 0.000
z 0.000 0.000 -0.674
Polar
3z2-r2-1.349
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.760 0.000 0.000
y 0.000 3.760 0.000
z 0.000 0.000 4.223


<r2> (average value of r2) Å2
<r2> 30.557
(<r2>)1/2 5.528